Section 4(c) - Bottom of Stairs
Bottom of Stairs is climeable. The description of Bottom of Stairs is "The stairs end here at a solid metal door labeled 'Basement - Private' leading northward."
The basement door is an openable locked door. It is north of Bottom of Stairs and south of Basement. The matching key of the basement door is a primitive copy of a key. "A plain, [if the door is closed]closed,[otherwise]opened,[end if] nondescript door leading [if the player is in Bottom of Stairs]north[otherwise]south[end if]." Instead of attacking the basement door, say "The door is solid metal and is unlikely to be opened by such means."